Elastic shaft-coupling.



y G. STAUBBR. BLASTIG SHAFT OOUPLING. APPLICATION FILED MAB.. 1, 1910..

Patnted Apr-.4, 1911.

UNITED STA'IIFIIENT OFFICE.

GEO-RG STAUBER, OF BERLIN, GERMANY.

ELASTIC SHAFT-COUILING.

To all 'whom 'it may concern:

Be it known that I, GEORG STAUBER, a subject of the German Emperor, residing at Berlin, lV., in Germany, have invented a certain new and useful Improvement in Elastic Shaft-Couplings, of which the following is a specification.

This invention relates to elastic shattcouplings. In couplings ot this kind it has been found that distortion of the springs, where they engage the shafts or coupling members, causes friction accompanied by rapid vwear, and in cases where a perfectly ri ldengagement of the springs has been a opted, in order to prevent this friction. it has been found that deflection and relative displacement of the shafts is to some extent prevented, which is contrary to the purpose of elastic couplings.

The object of the present invention is to remove these disadvantages, and the invention consists in making the coupling by means of plate springs which are rigidly ened with the coupling members in planes Ua ra lal to the shaft-s, and are bent between the coupling members so that deflection and' axial displacement of the coupled members can take place in any' direction without distortion of the engaged parts of the springs.

The invention ,is illustrated in the accompanying drawings, in Which'- Figures 1 and 2 are side elevations of two forms' of plate-springs showing also` the coupled members in section and broken away. 3 is a sectional plan view of the improved coupling, andFign shows the same in elevation. Fig 5 is a cross-section of part of another coupling embodying the improvement, and Fig. G is' an elevation thereof.

As shown inthe drawings, the ends of the plate-springs'a are fit-ted into radial slots b in coupling members c and d. The springs are bent, between the coupling members which they connect, so that these members can `loe displaced relatively to each other without causing friction between the springs and the coupling members.

The spring" a shown in Fig. 1 consists of Specification of Letters Patent.

Application filed March 1, 1910,

Patented Apr. 4, 1911.

serieu No. 546,621.

two parallel elastic plates the curved ends of which embrace pins e in the enlarged bases of the slots Z). The spring L2 shown in- Fig. Q consists of a single elastic plate, enlarged at its ends. Figs. 3 and 4 show the springs connecting two flanges c and d, the faces of which are in planes perpendicular to the axes of the shafts. Figs. 5 and t3 show the springs al projecting radially outward from collars (J keyed to the shafts. the onterends of the springs being fixed to two rings all, d: bolted together.

Both with the axial or longitudinal arrangement o the springs, as in Figs. 8 and 4, and with the radial arrangement, as in Figs. 5 and G, the plate-springs are engaged with the coupling members in planes radial to the shafts, and the bent shape of the springs enables the shafts to be deflected and axial-ly displaced relatively to each other without imposing st-rain on the attachment of springs, and without friction and distortion of those parts of the springs which are in engagement with the coupling members. The engagement being. in radial planes, the strain is perfectly uniform, with drive in either direction.

What I claim as my invent-ion and desire to secure by Letters Patent of the United States is:-

1. In an elastic shaft-coupling, in combination, two normally coaxial shafts, aA coupling member on each shaft having slots extending paral1e1-with the shafts and saidv slots having sockets at their bases, and plate springs connecting the coupling members, said springs extendin substantially parallel with the shafts'anf having heads tting normally-opposite sockets of said members and straight. portions passing through the slots in said members. the straightportions of the springs extendin from the members, and approximately V- shaped portions connecting the straight portions of said spring.

2. A n elastic sha coupling consisting of coupling members on the shafts connected. by bent blade springs so that the spring parts engaged firmly by said .coupling members considerably'away are in pimms radin] (o [he slm/fils, the Sm'ing pau-t5 of tlm spxings und Suid coupling projecting straight, from ihn faces of said i men'lbr-s. 10 cou ling members belorn being bums() that i In witness whereof 'f Imvc signed thisv their bont part lies fully in the free space I Specification in the prusorwn (riE Lw() wiinssos.

betwcenfsnd- 'faces and allows un axial disn (RECHG STAUBER. p'lacerile'ni, :L digital-Hun in both rilfectirmss, 'Wiilwsem 4nd :L e'lutiyc deflection Ofhe shafts without HENRY HAS-mam 'friction being created. hclrxwn ihn ungagetl WmmcAmn HAUPT. 

